CN203824405U - Oil-leakage-preventing structure of aluminum oil cooler - Google Patents

Abstract

The utility model discloses an oil-leakage-preventing structure of an aluminum oil cooler. The oil-leakage-preventing structure comprises a plurality of chip assemblies, and the chip assemblies are stacked, welded and fixed; each chip assembly comprises an upper chip (1), a lower chip (2) and fins (3); the upper chips (1) and the lower chips (2) are provided with upper through holes (1.1) and lower through holes (2.1) respectively, and upwards-turning edges (1.2) and downwards-turning edges (2.2) are arranged at opposite hole openings of the upper through holes (1.1) and the lower through holes (2.1) respectively; the upwards-turning edges (1.2) and the downwards-turning edges (2.2) are combined in a sleeved mode to be welded and fixed; the edges of the lower chips (2) are provided with downwards-concave annular grooves (2.3); the groove bottoms of the annular grooves (2.3) are planes; the lower surfaces of the groove bottoms of the annular grooves (2.3) in the lower chips (2) and the upper surfaces of the edges of base plates of the upper chips (1) of adjacent chip assemblies are welded. By means of the oil-leakage-preventing structure of the aluminum oil cooler, oil leakage can be avoided.

Description

The leak-proof arrangement of aluminium oil cooler

Technical field

The utility model relates to oil cooler technical field, relates to or rather a kind of leak-proof arrangement of aluminium oil cooler.

Background technology

Aluminium oil cooler, because compact conformation, heat exchange efficiency are high, is widely applied to the fields such as engine, gearbox.Aluminium oil cooler comprises many core assemblies chip module, and this many core assemblies chip module mutually superposes and is welded and fixed.Described chip assembly comprises chip, lower chip and fin.On described upper chip and lower chip, be respectively equipped with through hole and lower through-hole, the place, aperture that described upper through hole is relative with lower through-hole is respectively equipped with upper overturning and lower flange.Upper overturning and lower flange mutually overlap to merge and are welded and fixed.Between described upper chip and lower chip, form oily wing passage, described fin is located in described oily wing passage.The side of the lower chip of the side of described upper chip and the chip assembly of adjacent set is welded and fixed, and on this, between the lower chip of the chip assembly of chip and this adjacent set, forms water wing passage.The side of the upper chip of the side of described lower chip and the chip assembly of adjacent set is welded and fixed, and between the upper chip of the chip assembly of this lower chip and this adjacent set, also forms water wing passage.Oil wing passage and water wing passage are separate, by the water in water wing passage, the oil in oily wing passage are lowered the temperature.There is following defect in the leak-proof arrangement of the aluminium oil cooler of this kind of prior art: due to this kind of aluminium oil cooler adjacent two groups of chip assembly welding process in, just the side of two adjacent chips of this two groups of chip assembly is welded, bonding area is less, easily occurs the phenomenon of leakage of oil while there is rosin joint.

Utility model content

The technical problems to be solved in the utility model is, a kind of leak-proof arrangement that can avoid occurring the aluminium oil cooler of oil leakage phenomenon is provided.

Technical solution of the present utility model is, a kind of leak-proof arrangement with the aluminium oil cooler of following structure is provided, and comprises many core assemblies chip module, and this many core assemblies chip module mutually superposes and is welded and fixed; Described chip assembly comprises chip, lower chip and fin; On described upper chip and lower chip, be respectively equipped with through hole and lower through-hole, the place, aperture that described upper through hole is relative with lower through-hole is respectively equipped with upper overturning and lower flange; Described upper overturning and lower flange mutually overlap to merge and are welded and fixed; The edge of described lower chip is provided with the annular groove to lower recess; The bottom land of described annular groove is plane; The upper surface welding at the edge of the upper chip base plate of the lower surface of the bottom land of the annular groove of described lower chip and adjacent chip assembly.

Adopt after above structure, the leak-proof arrangement of aluminium oil cooler of the present utility model, compared with prior art, has the following advantages:

Because the edge of the lower chip of the leak-proof arrangement of aluminium oil cooler of the present utility model is provided with the annular groove to lower recess, the bottom land of annular groove is plane, the upper surface welding at the edge of the upper chip base plate of the lower surface of this bottom land and adjacent chip assembly, can increase like this bonding area between lower chip and the upper chip of adjacent chip assembly, avoid occurring the phenomenon of leakage of oil.

As a kind of improvement of the present utility model, the lateral wall of described annular groove is inclined-plane, and the inclination angle on described inclined-plane is 98 °; The sidewall of described upper chip is also inclined-plane, and the inclination angle on described inclined-plane is also 98 °; The sidewall of the upper chip of the lateral wall of described annular groove and adjacent chip assembly is fitted and is welded.Adopt after this kind of structure, can make between the lateral wall of annular groove and the sidewall of the upper chip of adjacent chip assembly laminating tightr, welding effect is better, can avoid occurring the phenomenon of rosin joint.

As another kind of improvement of the present utility model, the weld of described upper overturning and lower flange is sheathed with packing ring outward, the upper surface of described packing ring and upper chips welding, the lower surface of described packing ring and lower chips welding.Adopt after this kind of structure, described packing ring is welded between chip and lower chip, makes the sealing effectiveness of oily wing passage better, avoids oil to spill from the weld of upper overturning and flange.

As of the present utility model, also have a kind of improvement, between the outer wall of the weld of the inwall of described packing ring and described upper overturning and lower flange, have gap, described gap is 0.5-1.5mm.Adopt after this kind of structure, described gap is that packing ring expands with heat and contract with cold and leaves space.

As of the present utility model, also have a kind of improvement, described gap is 1mm.This kind is designed to optimum implementation.

Accompanying drawing explanation

Fig. 1 is the perspective view after the upper chip of the leak-proof arrangement of aluminium oil cooler of the present utility model, lower chip, fin and packing ring assembling.

Fig. 2 is the structural representation of lower chip of the leak-proof arrangement of aluminium oil cooler of the present utility model.

Fig. 3 is the part sectional structure schematic diagram after the two groups of chip assembly of the leak-proof arrangement of aluminium oil cooler of the present utility model is assembled.

Shown in figure: 1, upper chip, 1.1, upper through hole, 1.2, upper overturning, 2, lower chip, 2.1, lower through-hole, 2.2, lower flange, 2.3, annular groove, 3, fin, 4, packing ring, 5, gap.

the specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the leak-proof arrangement of aluminium oil cooler of the present utility model comprises many core assemblies chip module, and this many core assemblies chip module mutually superposes and is welded and fixed.Described chip assembly comprises chip 1, lower chip 2 and fin 3.On described upper chip 1 and lower chip 2, be respectively equipped with through hole 1.1 and lower through-hole 2.1, the place, aperture that described upper through hole 1.1 is relative with lower through-hole 2.1 is respectively equipped with upper overturning 1.2 and lower flange 2.2, and described upper overturning 1.2 and lower flange 2.2 mutually cover merging are welded and fixed.

The edge of described lower chip 2 is provided with the annular groove 2.3 to lower recess.The bottom land of described annular groove 2.3 is plane.The upper surface welding at the edge of upper chip 1 base plate of the lower surface of the bottom land of the annular groove 2.3 of described lower chip 2 and adjacent chip assembly.The lateral wall of described annular groove 2.3 is inclined-plane, and the inclination angle on described inclined-plane is 98 °.The sidewall of described upper chip 1 is also inclined-plane, and the inclination angle on described inclined-plane is also 98 °.The sidewall of the upper chip 1 of the lateral wall of described annular groove 2.3 and adjacent chip assembly is fitted and welds.

Described upper overturning 1.2 and the weld of lower flange 2.2 are sheathed with packing ring 4 outward, the upper surface of described packing ring 4 and 1 welding of upper chip, the lower surface of described packing ring 4 and 2 welding of lower chip.Between the outer wall of the weld of the inwall of described packing ring 4 and described upper overturning 1.2 and lower flange 2.2, have gap 5, described gap 5 is 0.5-1.5mm, and in this specific embodiment, described gap 5 is 1mm.

Claims (5)

1. a leak-proof arrangement for aluminium oil cooler, comprises many core assemblies chip module, and this many core assemblies chip module mutually superposes and is welded and fixed; Described chip assembly comprises chip (1), lower chip (2) and fin (3); On described upper chip (1) and lower chip (2), be respectively equipped with through hole (1.1) and lower through-hole (2.1), the place, aperture that described upper through hole (1.1) is relative with lower through-hole (2.1) is respectively equipped with upper overturning (1.2) and lower flange (2.2); Described upper overturning (1.2) and lower flange (2.2) mutually cover merging are welded and fixed; It is characterized in that: the edge of described lower chip (2) is provided with the annular groove (2.3) to lower recess; The bottom land of described annular groove (2.3) is plane; The upper surface welding at the edge of upper chip (1) base plate of the lower surface of the bottom land of the annular groove (2.3) of described lower chip (2) and adjacent chip assembly.

2. the leak-proof arrangement of aluminium oil cooler according to claim 1, is characterized in that: the lateral wall of described annular groove (2.3) is inclined-plane, and the inclination angle on described inclined-plane is 98 °; The sidewall of described upper chip (1) is also inclined-plane, and the inclination angle on described inclined-plane is also 98 °; The sidewall of the upper chip (1) of the lateral wall of described annular groove (2.3) and adjacent chip assembly is fitted and welds.

3. the leak-proof arrangement of aluminium oil cooler according to claim 1, it is characterized in that: the weld of described upper overturning (1.2) and lower flange (2.2) is sheathed with packing ring (4) outward, the upper surface of described packing ring (4) and upper chip (1) welding, the lower surface of described packing ring (4) and lower chip (2) welding.

4. the leak-proof arrangement of aluminium oil cooler according to claim 1, it is characterized in that: between the outer wall of the weld of the inwall of described packing ring (4) and described upper overturning (1.2) and lower flange (2.2), have gap (5), described gap (5) are 0.5-1.5mm.

5. the leak-proof arrangement of aluminium oil cooler according to claim 2, is characterized in that: described gap (5) are 1mm.